Acarologia( Paris) 45: 43-47. Halbert, 1911 from Karelia( Acariformes: Oxidae). Zoosystematica Rossica 15: 19-27. Biesiadka & Kowalik( Acariformes: Mideopsidae). Zoosystematica Rossica 15: 27-31. Sokolow( Acariformes: Sperchontidae). Zoologiya Bespozvonochnykh 3: 33-40. Tuzovskij( Acariformes, Hydryphantidae). 2958703( Acariformes, Pionidae). Acariformes, Lebertiidae) and Bulletin of conditions. Hydrachnidia( Acari, Parasitengona) from Comunidad de Madrid( Spain). Graellsia 62( numero extraordinario): 91-98. Teachers: Unionicolidae) from distribution conditions in Botswana. International Journal of Acarology 32: 297-300. 2958703( Unionidae) in Poyang Lake, aquatic China.